New Nike Jacket Size Chart

Size	Body Length (Back)	Chest Width	Sleeve Length
XS	25⅝ ″	18⅞ ″	32¼ ″
S	26 ″	20½ ″	32⅝ ″
M	26⅜ ″	22 ″	33¼ ″
L	27⅛ ″	23⅝ ″	33½ ″
XL	27⅞ ″	25⅝ ″	34⅛ ″
2XL	28¾ ″	27½ ″	34⅛ ″
3XL	29½ ″	29½ ″	35¼ ″
4XL	30¼ ″	31½ ″	35¾ ″